问题
选择题
-Nice to meet you, Helen.
-__________, Li Ming.[ ]
A. Nice to meet you, too
B. Hello
C. How do you do
D. Good morning
答案
A
搜题请搜索小程序“爱下问搜题”
-Nice to meet you, Helen.
-__________, Li Ming.[ ]
A. Nice to meet you, too
B. Hello
C. How do you do
D. Good morning
A
R(g)+S（g）在恒温下已达到平衡的是（ ）